Answer:
c = 2
Step-by-step explanation:
Isolate the variable, c. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS is the order of operations, and stands for:
Parenthesis
Exponents (& roots)
Multiplications
Divisions
Additions
Subtractions
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First, subtract 6 from both sides of the equation:
9c + 6 (-6) = 24 (-6)
9c = 24 - 6
9c = 18
Next, divide 9 from both sides of the equation:
(9c)/9 = (18)/9
c = 18/9
c = 2
c = 2 is your answer.
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Answer:
The answer is 2 hours later.
Step-by-step explanation:
In order to find how many hours you and your friend meet, you have to solve the equation to find h :
If you're trying to find the missing side of the "triangle" (the distance from the house to where the ladder touches the ground), you would use the pythagorean theorem, a²+b²=c². (c is always hypotenuse)
a²+b²=c²
12²+b²=15²
144+b²=225
b²=81
√b²=√81
b=9
